PRECISION DIGITAL ProVu Series User manual

PROVU PD6100 Strain Gauge, Load Cell & mV Meter
Instruction Manual
Precision Digital Corporation
Strain Gauge
15, 30, 150, 300 mV Unipolar Input Ranges
±15, ±25, ±150, ±250 mV Bipolar Input Ranges
Selectable 5 or 10 VDC @ 350 mA Maximum Sensor Excitation
Supports up to Twelve (12) 350 Ω Load Cells
Capture or Programmable Tare Feature
Auto-Zero Feature Eliminates Zero Drift
Ratiometric Operation
Max/Min or Peak/Valley Hold Feature
Display One Input in Two Different Scales (e.g. Weight & Volume)
Rounding Function 1, 2, 5, 10, 20, 50, or 100
Dual-Line Display
NEMA 4X and IP65 Rated Front Panel
UL Listed & CE Marked
Display Features 0.6
" & 0.46" Digits
Six Full Digits on Each Line
Optional Superluminous Sunlight Readable Display
Free USB Programming Software & Cable
2 or 4 Relays + Isolated 4-20 mA Output Options
USB, RS-232, & RS-485 Serial Communication Options
External 4-Relay & Digital I/O Expansion Modules
Input Power Options Include 85-265 VAC or 12-24 VDC
 Modbus® RTU Communication Protocol Standard
P
R
V
U
S
ERIES
®
USB Install
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
2
Disclaimer
The information contained in this document is subject to change without notice.
Precision Digital makes no representations or warranties with respect to the contents
hereof and specifically disclaims any implied warranties of merchantability or fitness
for a particular purpose.
CAUTION: Read complete
instructions prior to installation
and operation of the meter.
WARNING:Risk of
electric shock or
personal injury.
Warning!
This product not recommended for life support
applications or applications where
malfunctioning could result in personal injury
or property loss. Anyone using this product for
such applications does so at his/her own risk.
Precision Digital Corporation shall not be held
liable for damages resulting from such
improper use.
Limited Warranty
Precision Digital Corporation warrants this product against defects in material or
workmanship for the specified period under “Specifications” from the date of
shipment from the factory. Precision Digital’s liability under this limited warranty shall
not exceed the purchase value, repair, or replacement of the defective unit.
Registered Trademarks
P RO V U® and MeterView
®
Pro are registered trademarks of Precision Digital Corporation.
Modbus
®
is a Registered Trademark of Schneider Automation Inc. All other trademarks
mentioned in this document are the property of their respective owners.
© 2017 Precision Digital Corporation. All rights reserved.
!
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
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Instruction Manual
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Table of Contents
Table of Contents .................................................. 3 
Table of Figures .................................................... 4 
Introduction ........................................................... 4 
Ordering Information ............................................ 5 
Specifications ........................................................ 6 
General ....................................................................... 6
Strain Gauge Input ...................................................... 7
Relays ......................................................................... 7
Isolated 4-20 mA Transmitter Output .......................... 8
Modbus
®
RTU Serial Communications ....................... 8
MeterView Pro ............................................................. 8
Compliance Information ....................................... 9
Safety .......................................................................... 9
Electromagnetic Compatibility ..................................... 9
Safety Information ............................................... 10
Installation ........................................................... 10
Unpacking ................................................................. 10
Panel Mounting Instructions ...................................... 10
Mounting Dimensions............................................ 11
Sensor Excitation Voltage Selection (EX+, EX-) ....... 11
Connections .............................................................. 12
Connectors Labeling ............................................. 12
Power Connections............................................... 12
Signal Connections ............................................... 13
Switch Configuration ............................................. 13
Shunt Calibration................................................... 15
Modbus RTU Serial Communications ................... 16
Relay Connections................................................ 16
Switching Inductive Loads..................................... 16
4-20 mA Output Connections................................ 17
Analog Output Power Supply................................ 17
F4 Digital Input Connections................................. 17
External Relays & Digital I/O Connections............ 18
Interlock Relay Feature......................................... 18
Setup and Programming .................................... 19
Front Panel Buttons and Status LED Indicators ........ 19
MeterView
®
Pro Software .......................................... 20
MeterView Pro Installation..................................... 20
Display Functions & Messages ................................. 21
Setting Numeric Values ............................................. 23
Main Menu ................................................................ 23
Setting Up the Meter (setup) .................................... 24
Setting the Input Signal ( Input )............................ 25
Setting the Input Units ( units ).............................. 26
Setting the Input Units or Custom Tags ( units ) ... 27
Programming the Meter ( prog ) ............................. 28
Calibrating the Meter with Strain Gauge/Load Cell
(
Cal )...................................................................... 28
Setting the Display Parameter & Intensity ( dsplay )
.............................................................................. 30
Setting the Relay Operation (relay) ......................... 31
Setting the Relay Action........................................ 32
Programming Set and Reset Points...................... 33
Setting Fail-Safe Operation................................... 33
Programming Time Delay...................................... 33
Relay and Alarm Operation Diagrams ....................... 33
High Alarm Operation (Set > Reset) ......................33
Low Alarm Operation (Set < Reset).......................33
High Alarm with Fail-Safe Operation (Set > Reset)34
Low Alarm with Fail-Safe Operation (Set < Reset) 34
Pump Alternation Control Operation......................34
Relay Sampling Operation.....................................35
Time Delay Operation............................................35
Relay Operation Details ............................................. 36
Overview................................................................36
Relays Auto Initialization........................................36
Fail-Safe Operation................................................36
Front Panel LEDs...................................................36
Latching and Non-Latching Relay Operation.........37
Non-Latching Relay ( Auto )....................................37
Non-Latching Relay ( A-man )...............................37
Latching Relay ( LatcH )..........................................37
Latching Relay ( Lt-Clr )........................................37
Acknowledging Relays...........................................38
Pump Alternation Control Applications ( Altern ) ...38
Setting Up the Interlock Relay (Force On) Feature40
Scaling the 4-20 mA Analog Output (Aout) ............... 40
Setting Up the Password (pass) ................................ 41
Protecting or Locking the Meter.............................41
Making Changes to a Password Protected Meter..41
Disabling Password Protection ..............................41
Reset Menu (reset) .................................................. 42
Tare Menu (Tare) ...................................................... 42
Tare Functionality ( tare ).......................................42
Control Menu (Contrl) .............................................. 42
Advanced Features Menu .......................................... 43
Advanced Features Menu & Display Messages.....43
Noise Filter ( filter )..............................................44
Noise Filter Bypass ( bypass ).................................44
Rounding Feature ( round ).....................................44
Modbus RTU Serial Communications ( serial ).....45
Select Menu ( SElect )............................................45
Signal Input Conditioning ( Functn )........................45
Auto-Zero ( Auto 0 )................................................46
Low Cutoff ( CutofF ) ..............................................46
Analog Output Programming ( AoutPr ) ..................46
Programmable Function Keys User Menu ( user )..47
Internal Source Calibration ( ICAL ).........................48
Error Message ( error )..........................................49
Meter Operation ................................................... 50
Front Panel Buttons Operation .................................. 50
Function Keys Operation ........................................... 50
Maximum/Minimum Readings .................................... 51
Troubleshooting .................................................. 52
Diagnostics Menu (diag) ........................................... 52
Determining Software Version ...............................52
Reset Meter to Factory Defaults ................................ 52
Factory Defaults & User Settings...........................53
Troubleshooting Tips (Including FAULT & ERROR
Messages) ................................................................... 54
EU Declaration of Conformity ............................ 55
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
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Instruction Manual
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Table of Figures
Figure 1. 1/8 DIN Panel Cutout Dimensions .............. 10
Figure 2. Panel Mounting Details ............................... 10
Figure 3. Meter Dimensions - Side View ................... 11
Figure 4. Meter Dimensions - Top View .................... 11
Figure 5. Sensor Excitation Voltage Selection ......... 11
Figure 6. Connector Labeling for Fully Loaded
PD6100 ................................................................. 12
Figure 7. Power Connections ..................................... 12
Figure 8. Strain Gauge Configuration Switch ........... 13
Figure 9. Strain Gauge Powered by Internal Supply 14
Figure 10. Strain Gauge Powered by External Supply
.............................................................................. 14
Figure 11. Multiple Strain Gauges Connected
Through Junction Box ........................................ 15
Figure 12. mV Transducer Input Connections .......... 15
Figure 13. Shunt Resistor ........................................... 15
Figure 14. Relay Connections ..................................... 16
Figure 15. AC and DC Loads Protection .................... 16
Figure 16. Low Voltage DC Loads Protection ........... 16
Figure 17. 4-20 mA Output Connections .................... 17
Figure 18. F4 Digital Input Connections .................... 17
Figure 19. Expansion Modules & DIN Rail Mounting
Kit .......................................................................... 18
Figure 20. External Relays Module Connections ...... 18
Figure 21. Digital I/O Module Connections ................ 18
Figure 22. Interlock Connections ............................... 18
Figure 23. Acknowledge Relays with Digital Input.... 38
Introduction
The PROVU
®
PD6100 is a multipurpose, easy-to-use digital strain gauge & load cell meter ideal for
weighing and force measurement applications. Its superluminous LED digits make it easily readable
in smoke, dust, fog, and, with the optional SunBright® display, even direct sunlight.
It accepts mV input signals up to 300 mV. With a max current of 350 mA at 10 V, it can support up
to twelve (12) 350 Ω load cells (minimum load resistance of 28 Ω), making it ideal for multipoint
weight measurement applications. The mV input can be scaled to display the process in two
different scales; for example, pounds on display line 1 and gallons on line 2. Three of the front panel
buttons can be custom-programmed for a specific operation.
The basic model includes an isolated 5 or 10VDC Sensor power supply that can be used to power
the input Sensor or 24 VDC for other devices. An additional isolated 24 VDC power supply is
included with the 4-20 mA output option.
A digital input (F4) and micro USB port are standard on
the meter.
A fully loaded PD6100 meter has the following: four SPDT relays, 4-20 mA output, one 10 VDC
sensor excitation, and one 24 VDC power supply. The PD6100 capabilities may be enhanced by
adding the following external expansion modules: four SPST relays –creating an eight-relay process
meter, two digital I/O modules with four inputs and four outputs each, and RS-232 or RS-485
communication adapters.
The eight relays can be used for alarm indication or process control such as pump alternation
control. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O options
make the PD6100 an excellent addition to any system.
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
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Instruction Manual
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Ordering Information
Standard Models
85-265 VAC Model 12-24 VDC Model Options Installed
PD6100-6R0 PD6100-7R0 No options
PD6100-6R2 PD6100-7R2 2 relays (PD1102*)
PD6100-6R3 PD6100-7R3 4-20 mA output (PD1103*)
PD6100-6R4 PD6100-7R4 4 relays (PD1104*)
PD6100-6R5 PD6100-7R5 2 relays & 4-20 mA output (PD1105*)
PD6100-6R7 PD6100-7R7 4 relays & 4-20 mA output (PD1107*)
*Model number for replacement option card.
SunBright Display Models
85-265 VAC Model 12-24 VDC Model Options Installed
PD6100-6H0 PD6100-7H0 No options
PD6100-6H2 PD6100-7H2 2 relays (PD1102*)
PD6100-6H3 PD6100-7H3 4-20 mA output (PD1103*)
PD6100-6H4 PD6100-7H4 4 relays (PD1104*)
PD6100-6H5 PD6100-7H5 2 relays & 4-20 mA output (PD1105*)
PD6100-6H7 PD6100-7H7 4 relays & 4-20 mA output (PD1107*)
*Model number for replacement option card.
Accessories
Model Description
PDA1002 DIN rail mounting kit for two expansion modules
PDA1004 4 SPST (Form A) relays
PDA1044 4 digital inputs & 4 digital outputs (2 may be connected)
PDA1232 RS-232 serial adapter
PDA1485 RS-485 serial adapter
PDA7485-I RS-232 to RS-422/485 isolated converter
PDA7485-N RS-232 to RS-422/485 non-isolated converter
PDA8232-N USB to RS-232 non-isolated converter
PDA8485-I USB to RS-422/485 isolated converter
PDA8485-N USB to RS-422/485 non-isolated converter
PDX6901 Suppressor (snubber): 0.01 µF/470

, 250 VAC
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
6
Specifications
Except where noted all specifications apply to operation at +25°C.
General
Display Line 1: 0.60" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999),
with lead zero blanking
Display
Intensity
Eight user selectable intensity levels
Display
Update Rate
5/second (200 ms)
Overrange Display flashes 999999
Underrange Display flashes -99999
Display
Assignment
The displays may be assigned to
PV1, PV2, PCT, max & min, set
points, PV & units, units (lower
display only), net & gross weight,
Modbus input, and display millivolts.
Units lb, kg, ounce, gram, ton, metric ton
(tonne), custom units.
Programming
Methods
Four front panel buttons, digital inputs,
PC and MeterView Pro software, or
Modbus registers.
Noise Filter Programmable from 2 to 199 (0 will
disable filter)
Filter Bypass Programmable from 0.1 to 99.9% of
calibrated span
Rounding Select 1, 2, 5, 10, 20, 50, or 100
(e.g. rounding = 10, value = 123.45,
display = 123.50).
Recalibration All ranges are calibrated at the
factory. Recalibration is
recommended at least every
12 months.
Max/Min
Display
Max/min readings reached by the
process are stored until reset by the
user or until power to the meter is
cycled.
Password Three programmable passwords
restrict modification of programmed
settings.
Pass 1: Allows use of function keys
and digital inputs
Pass 2: Allows use of function keys,
digital inputs and editing set/reset
points
Pass 3: Restricts all programming,
function keys, and digital inputs.
Non-Volatile
Memory
All programmed settings are stored
in non-volatile memory for a
minimum of ten years if power is lost.
Power
Options
85-265 VAC 50/60 Hz, 90-265 VDC,
20 W max or 12-24 VDC  10%, 15 W
max. Powered over USB for
configuration only.
Fuse Required external fuse: UL
Recognized, 5 A max, slow blow; up
to 6 meters may share one 5 A fuse
Isolated
Sensor Power
Supply
Terminals EX+ & EX-: 10 VDC or
5 VDC  10%, rated @ 350 mA max.
Note: Do not use 24 VDC to power
strain gauge bridge.
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
Isolation 4 kV input-to-power line
500 V input-to-output (powered by
external supply)
Overvoltage
Category
Installation Overvoltage Category II:
Local level with smaller transient
overvoltages than Installation
Overvoltage Category III.
Environmental Operating temperature range: -
40 to 65°C
Storage temperature range: -40 to
85°C
Relative humidity: 0 to 90% non-
condensing
Connections Removable screw terminal blocks
accept 12 to 22 AWG wire, RJ45 for
external relays, digital I/O, and serial
communication adapters.
Enclosure 1/8 DIN, high impact plastic, UL 94V-
0, color: black
Mounting 1/8 DIN panel cutout required:
3.622" x 1.772" (92 mm x 45 mm)
Two panel mounting bracket
assemblies are provided.
Tightening
Torque
Screw terminal connectors: 5 lb-in
(0.56 Nm)
Overall
Dimensions
4.68" x 2.45" x 5.64" (119 mm x 62
mm x 143 mm)
(W x H x D)
Weight 9.5 oz (269 g)
Warranty 3 years parts & labor
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
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Strain Gauge Input
Inputs Field selectable: 0-15, 0-30, 0-150,
0-300 mV, ±15, ±25, ±150, ±250
mV, or Modbus PV (Slave)
Accuracy ±0.03% of calibrated span ±1 count
Minimum Load
Resistance
14 Ω @ 5 V
28 Ω @ 10 V
Maximum
Excitation
Current
350 mA @ 5 V or 10 V
Temperature
Drift
0.002% of calibrated span/C max
from 0 to 65C ambient,
0.005% of calibrated span/C max
from -30 to 0C ambient
Functions Linear with multi-point linearization
Multi-Point
Linearization
2 to 32 points for PV or PV1
2 to 8 points for PV2 (Dual-scale
feature)
Low-Flow
Cutoff
0-999999 (0 disables cutoff function)
Decimal Point Up to five decimal places or none:
d.ddddd, d.dddd, d.ddd, d.dd, d.d, or
dddddd
Calibration
Range
Input
Range
Minimum Span
Input 1 & Input 2
15 mV 0.2 mV
25 mV, 30 mV 0.4 mV
150 mV 2.0 mV
250 mV, 300 mV 4.0 mV
An Error message will appear if the
input 1 and input 2 signals are too
close together.
Input
Impedance
Strain Gauge Bridge: Greater than
10 MΩ
mV Source: 200 kΩ
Relays
Rating 2 or 4 SPDT (Form C) internal and/or
4 SPST (Form A) external; rated 3 A
@ 30 VDC and 125/250 VAC
resistive load; 1/14 HP (≈ 50 W) @
125/250 VAC for inductive loads
Noise
Suppression
Noise suppression is recommended
for each relay contact switching
inductive loads; see page 16 for
details.
Deadband 0-100% of span, user programmable
High Or Low
Alarm
User may program any alarm for high
or low trip point.
Unused alarm LEDs and relays may
be disabled (turn off).
Relay
Operation
Automatic (non-latching)
Latching (requires manual
acknowledge)
Sampling (based on time)
Pump alternation control (2 to 8
relays)
Off (disable unused relays and
enable Interlock feature)
Manual on/off control mode
Relay Reset User selectable via front panel
buttons or digital inputs
1. Automatic reset only (non-
latching), when the input passes
the reset point.
2. Automatic + manual reset at any
time (non-latching)
3. Manual reset only, at any time
(latching)
4. Manual reset only after alarm
condition has cleared (L)
Note: Front panel button or digital
input may be assigned to
acknowledge relays
programmed for manual reset.
Time Delay 0 to 999.9 seconds, on & off relay
time delays
Programmable and independent for
each relay
Fail-Safe
Operation
Programmable and independent for
each relay.
Note: Relay coil is energized in non-
alarm condition. In case of
power failure, relay will go to
alarm state.
Auto
Initialization
When power is applied to the meter,
relays will reflect the state of the
input to the meter.
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
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Instruction Manual
8
Isolated 4-20 mA Transmitter Output
Output Source Process variable (PV), max, min, set
points 1-8, Modbus input, or manual
control mode
Scaling Range 1.000 to 23.000 mA for any display
range
Calibration Factory calibrated: 0.00 to 100.00 =
4-20 mA output
Analog Output
Programming
1.000 mA minimum and 23.000 mA
maximum for all parameters:
overrange, underrange, max, min,
and break
Accuracy ± 0.1% of span ± 0.004 mA
Temperature
Drift
0.4 µA/C max from 0 to 65C
ambient,
0.8 µA/C max from -40 to 0C
ambient
Note: Analog output drift is separate
from input drift.
Isolated
Transmitter
Power Supply
Terminals I+ & R: 24 VDC  10%
isolated from the input at >500 V.
May be used to power the 4-20 mA
output or other devices
(except load
cell/strain gauge). Refer to Figure 6 on
page 12 and Figure 17 on page
17.
All models rated @ 40 mA max.
External Loop
Power Supply
35 VDC maximum
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC 10  700 
35 VDC
(external)
100  1200 
Modbus
®
RTU Serial Communications
Slave ID 1 – 247 (Meter address)
Baud Rate 300 – 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199
ms or transmitter always on for RS-
422 communication
Data 8 bit (1 start bit, 1 or 2 stop bits)
Parity Even, Odd, or None with 1 or 2 stop
bits
Byte-to-Byte
Timeout
0.01 – 2.54 second
Turn Around
Delay
Less than 2 ms (fixed)
Note: Refer to the PROVU
®
Modbus Register Tables
MeterView Pro
System
Requirements
Microsoft
®
Windows
®
XP/Vista/7/8/10
Communications USB 2.0 (Standard USB A to Micro
USB B)
Configuration Configure meters one at a time
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
9
Compliance Information
Safety
UL & c-UL Listed USA & Canada
UL 508 Industrial Control Equipment
UL File Number E160849
Front Panel UL Type 4X, NEMA 4X, IP65; panel gasket provided
Low Voltage
Directive
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Electromagnetic Compatibility
EMISSIONS EN 55022:2010
Class A ITE emissions requirements
Radiated Emissions Class A
AC Mains Conducted
Emissions
Class A
IMMUNITY EN 61326-1:2013
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
RFI - Amplitude
Modulated
80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
Electrical Fast
Transients
±2kV AC mains, ±1kV other
Electrostatic
Discharge
±4kV contact, ±8kV air
RFI - Conducted 10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge ±2kV Common, ±1kV Differential
Surge 1KV (CM)
Power-Frequency
Magnetic Field
30 A/m 70%V for 0.5 period
Voltage Dips 40%V for 5 & 50 periods
70%V for 25 periods
Voltage Interruptions <5%V for 250 periods
Note:
Testing was conducted on PD6100 meters installed through the covers of grounded metal enclosures
with cable shields grounded at the point of entry representing installations designed to optimize EMC
performance.
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
10
Safety Information
CAUTION: Read complete
instructions prior to installation
and operation of the meter.
WARNING: Risk of electric
shock or personal injury.
WARNING!
Hazardous voltages exist within enclosure.
Installation and service should be performed
only by trained service personnel.
Installation
There is no need to remove the meter from its case to complete the installation, wiring, and setup
of the meter for most applications.
Instructions are provided for changing the sensor power supply to output 5 or 10 VDC instead of
24 VDC on page 11.
Unpacking
Remove the meter from box. Inspect the packaging and contents for damage. Report damages, if
any, to the carrier.
If any part is missing or the meter malfunctions, please contact your supplier or the factory for
assistance.
Panel Mounting Instructions
 Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x 45 mm). Refer to Figure below,
for more details.
 Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.
 Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).
Recommended minimum panel thickness to maintain Type 4X
rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.
 Remove the two mounting brackets provided with the meter (back-off the two screws so that there is ¼"
(6.4 mm) or less through the bracket. Slide the bracket toward the front of the case and remove).
 Insert meter into the panel cutout.
 Install mounting brackets and tighten the screws against the panel. To achieve a proper seal, tighten
the mounting bracket screws evenly until meter is snug to the panel along its short side. DO NOT
OVER TIGHTEN, as the rear of the panel may be damaged.
Figure 1. 1/8 DIN Panel Cutout
Dimensions
Figure 2. Panel Mounting Details
!
3.622" (92 mm)
1.772"
(45mm) Panel Cutout
to DIN 43700
Square Corners to 0.060"
(1.5mm) Max Radius
A
B
Tolerances:
A
: +0.032 (+0.8mm)
-0.000 (-0.0mm)
B: +0.024 (+0.6mm)
-0.000 (-0.0mm)
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PROVU PD6100 Strain Gau
g
e, Load Cell, & mV Mete
r
Instruction Manual
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Mounting Dimensions
Figure 3. Meter Dimensions - Side View Figure 4. Meter Dimensions - Top View
Sensor Excitation Voltage Selection (EX+, EX-)
All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory
configured to provide 10 VDC excitation for the sensor.
If the sensor requires 5 VDC excitation, the internal jumper J3 must be configured accordingly.
To access the voltage selection jumper:
1. Remove all the wiring connectors.
2. Unscrew the back cover.
3. Slide out the back cover by about 1 ½ inches.
4. Configure the J3 jumper, located behind the input signal connector, for the desired excitation
voltage as shown.
Caution!
Do not use 24V to power a strain gauge bridge. The
24 V jumper configuration should only be used for mV
input applications from 4 wire sensors.
Figure 5. Sensor Excitation Voltage Selection
NO NCNCC
NOC
NO NCNCC
NOC+
-R
!
MAIN BOARD
INPUT
SIGNAL
F4
COM
SG+
EX+
SG-
EX-
5V 10 V 24 V
Jumper Configuration
Factory Default
24V
10V
J3
5V 10V
J4
No jumper should
be appied to J4
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Connections
All connections are made to removable screw terminal connectors located at the rear of the meter.
Caution!
Use copper wire with 60°C or 60/75°C insulation for
all line voltage connections. Observe all safety
regulations. Electrical wiring should be performed in
accordance with all applicable national, state, and
local codes to prevent damage to the meter and
ensure personnel safety.
Connectors Labeling
The connectors’ label, affixed to the meter, shows the location of all connectors available with requested
configuration.
Warning!
Do not connect any equipment other than Precision Digital’s
expansion modules, cables, or meters to the RJ45 M-LINK connector.
Otherwise damage will occur to the equipment and the meter.
Figure 6. Connector Labeling for Fully Loaded PD6100
Power Connections
Power connections are made to a two-terminal connector labeled
POWER on Figure 6. The meter will operate regardless of DC polarity connection. The + and - symbols are
only a suggested wiring convention.
Figure 7. Power Connections
!
SG- SG+
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+-
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Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 6. The EX+ and EX-
terminals are used to sense the sensor excitation voltage for ratiometric operation, when the sensor is
powered externally (switch 1 is off).
Switch Configuration
Setup and programming is performed both through the front panel buttons and switch settings shown below.
The switch configuration must correspond to the setup and programming starting on page 29 (same range,
type, etc.).
Figure 8. Strain Gauge Configuration Switch
Excitation (Switch 1)
The excitation switch designates whether the meter will use its internal power supply or an external power
supply.
Switch 1
ON Excitation Internal Excitation When switch is turned ON, the ProVu's
power supply is used.
OFF Excitation External Excitation When switch is turned OFF, an external
power supply is used.
Range (Switch 2)
The range switch adjusts the gain of the internal circuitry. Narrower ranges require more amplification.
Switch 2
ON Range Higher internal gain Turn this switch ON for the following input
ranges: 15, 30, ±15, or ±25 mV.
OFF Range Lower internal gain Turn this switch OFF for the following input
ranges: 150, 300, ±150, or ±250 mV.
Polarity (Switch 3)
The polarity switch selects whether the range is unipolar and starts at zero (i.e. 0 to 30 mV) or bipolar and
starts at a negative value, or below zero (i.e. -15 to +15 mV).
Switch 3
ON Polarity Range starts at
zero (unipolar)
Turn this switch ON for the following input
ranges: 15, 30, 150, or 300.
OFF Polarity Range starts below
zero (bipolar)
Turn this switch OFF for the following input
ranges:
±15, ±25, ±150, or ±250 mV.
Source (Switch 4)
The source switch tells the ProVu whether the input is a strain gauge bridge (i.e. Figure 11), or it is a
signal from a 2 or 4 wire transducer, or mV source (i.e. Figure 12)
Switch 4
ON Source Source is mV input
transducer
Turn this switch ON if the connected
source is a transducer*
OFF Source Source is strain
gauge bridge
Turn this switch OFF if the source is a
strain gauge bridge
*Ratio should be set to NO in Setup Input Menu
34
SG- SG+
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Shunt Resistor (Switch 5)
The PD6100 provides a means of simulating strain in a strain gauge bridge circuit via a 60.4KΩ shunt
resistor included in the meter. This will simulate an approximate 70% full-scale load in the case of a 350Ω
strain bridge.
Switch 5
ON Shunt Shunt resistor is connected to
the input bridge.
Turn switch ON when you want
to simulate a strain load
OFF Shunt Shunt resistor is disconnected
from the input bridge.
Turn this switch OFF to remove
the shunt resistor
Strain Gauge Connections
The following figures show examples of strain gauge connections.
There is a 5-position DIP switch (CONFIG) to set up the input ranges and ratiometric operation.
NOTE: Refer to Switch Configuration starting on page 13 for proper configuration switch
positioning.
Figure 9. Strain Gauge Powered by Internal Supply
Figure 10. Strain Gauge Powered by External Supply
EX+COM
2134
F4 SG+SG-
INPUT SIGNAL
56
EX+
EX-
SG- SG+
EX-
EX+
COM
2134
F4 SG+SG-
INPUT SIGNAL
56
EX+
EX-
SG- SG+
EX-
5-10 VDC
Power
Supply
+
-
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NOTE: Refer to Switch Configuration starting on page 13 for proper switch positioning for the
following wiring configurations.
When connecting multiple strain gauges to the meter, each must be wired in parallel. This is typically
done with the use of a junction box.
Figure 11. Multiple Strain Gauges Connected Through Junction Box
Figure 12. mV Transducer Input Connections
Shunt Calibration
The PD6100 is equipped with a means of simulating strain in a strain gauge bridge circuit, via an included
shunt resistor in the meter. This technique is performed by enabling the “shunt resistor” switch (switch 5),
which in turn shunts one leg of a connected strain bridge with a predetermined resistive load (60.4k). This
technique can be used as a means of verifying instrumentation by simulating a physical input. With no
load connected, the enabling of the shunt resistor (switch 5) will simulate approximately a 70% F.S. load
in the case of a 350Ω Strain Bridge.
Figure 13. Shunt Resistor
EX+COM
2134
F4 SG+SG-
INPUT SIGN
A
L
56
EX+
EX-
SG- SG+
EX-
EX+
EX-
SG- SG+
EX+
SG- SG+
Up to 12
Load Cells
EX-
Junction Box
EX+COM
2134
F4 SG+SG-
INPUT SIGNAL
56
EX-
CONFIG
ON
4 5321
3-Wire 100 mV
Transducer
EX+ SG- SG+
EX+
EX-
SG- SG+
Notes
 Two-wire mV signals: Connect positive
to SG+ and negative to SG-
 Four-wire transducer: Connect EX- to
negative power transducer terminal.
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Modbus RTU Serial Communications
Serial communications connection is made to an RJ45 connector labeled M-LINK on Figure 6. Use the
PDA1232 for RS-232 interfacing or the PDA1485 for RS-485 interfacing. The same port is used for
interfacing with all expansion modules (e.g. external relays, digital I/O).
Relay Connections
Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on Figure 6.
Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of
the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal
of the INPUT SIGNAL connector.
Figure 14. Relay Connections
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent
disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts.
Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased
as complete assemblies. Refer to the following circuits for RC network assembly and installation:
Figure 15. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the meter's relay screw terminals. An RC network may also be installed
across the load. Experiment for best results.
Figure 16. Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an
inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
CNONO NC NC C
RELAY4 RELAY3
4365 21
CNONO NC NC C
RELAY2 RELAY1
4365 21
C
R
C
R
Use a diode with a reverse
breakdown voltage two to
three times the circuit
voltage and forward current
at least as large as the load
current.
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4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT.
The 4-20 mA output may be powered internally or from an external power supply.
Figure 17. 4-20 mA Output Connections
Analog Output Power Supply
If the analog output is not using the 24 VDC supply to power the output loop, it can be used for other
things. The I+ Terminal is the +24 V and the R terminal is the return.
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input is connected with a normally open contact
across F4 and COM, or with an active low signal applied to the F4.
The functionality of the F4 input is set up in the Advanced Features, User menu.
Figure 18. F4 Digital Input Connections
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-
+
RI- I+
132
RELAY1
321
24 V
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
-
+
RI- I+
MA OUT
132
RELAY1
321
24 V
MA OUT
EX+
2134
F4 SG+ SG-
INPUT SIGNAL
56
COM EX-
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External Relays & Digital I/O Connections
The relay and the digital I/O expansion modules PDA1004 & PDA1044 are connected to the meter using
a CAT5 cable provided with each module. The two RJ45 connectors on the expansion modules are
identical and interchangeable; they are used to connect additional modules to the system.
Note: The jumper located between the RJ45 connectors of the PDA1044 must be removed on the second
digital I/O module in order for the system to recognize it as module #2.
Warning!
Do not connect or disconnect the expansion
modules with the power on!
More detailed instructions are provided with
each optional expansion module.
Figure 19. Expansion Modules & DIN Rail
Mounting Kit
Figure 20. External Relays Module
Connections
Figure 21. Digital I/O Module Connections
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as
interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This
feature is enabled by configuring the relay, and relative digital input(s) (see page 40). In one example, dry
interlock contacts are connected in series to one digital input which will be used to force on (energize) the
assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front
panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O
contact). See below.
Figure 22. Interlock Connections
12
RLY5 RLY6 RLY7 RLY8
345678
NO C NO C NO C NO C
123456
+5 I1 I2 I3 I4 O1
78
O2 O3
910
O4 G
DI 1-4 DO 1-4
5 VDC GND
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Setup and Programming
The meter is factory calibrated prior to shipment
to read in millivolts. The calibration equipment is
certified to NIST standards.
Overview
There is a 5-position DIP switch to set the meter input selection. See Figure 8 on page 13 to setup the
switch.
Setup and programming is done through the front panel buttons.
After power and input signal connections have been completed and verified, apply power to the meter.
Front Panel Buttons and Status LED Indicators
Button
Symbol
Description LED Status
Menu 1-8 Alarm 1-8 indicator
Right arrow/F1
Zero Meter 1-8
M
Flashing: Relay in
manual control mode
Up arrow/F2
Reset Tare T
G
Flashing: Tare (Net)
Gross
Enter/F3
Tare 1-4 Flashing: Relay
interlock switch open
Note:
Alarms 5-8 are enabled
when relay expansion
module is installed.
Note:
LEDs for relays in manual
mode flash with the “M” LED
every 10 seconds.
 Press the Menu button to enter or exit the Programming Mode at any time.
 Press the Right arrow button to move to the next digit during digit or decimal point programming.
 Press or hold the Up arrow button to scroll through the menus, decimal point, or to increment the
value of a digit.
 Press the Enter button to access a menu or to accept a setting.
 Press and hold the Menu button for three seconds to access the advanced features of the meter.
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MeterView® Pro Software
The meter can also be programmed using the PC-based MeterView Pro software included with the meter.
This software can be installed on any Microsoft® Windows® (XP/Vista/7/8/10) computer by connecting
the meter’s onboard USB. The meter is powered by the USB connection, so there is no need to wire
anything prior to programming the meter, though USB is intended only for meter configuration.
MeterView Pro Installation
1. Connect one end of the provided USB cable to the meter and the other end to the computer.
The computer will automatically install the driver software it needs to talk to the meter.
Only one meter may be connected at a time.
Attaching multiple meters will cause a
conflict with the meter software.
2. Once the driver is installed, an AutoPlay dialog should appear
for the drive “MAINSTAL.” Click “Open folder to view files.”
If the computer does not display an AutoPlay dialog for the
drive “MAINSTAL,” you should open My Computer and double-
click on the drive labeled “MAINSTAL.”
3.
Double-click on the file named “MAStart.” The program will
open a few windows and install two programs on your
computer. Simply follow the onscreen instructions until you see
one of the dialogs below. If you receive a “User Account
Control” warning, click “Yes.”
4.
If there is an update available, click the “Update” button to
install the new version. Otherwise, click “Configure” to begin
programming your meter.
Note: If you decide to update your MeterView Pro software, once the installation has completed, you
will be asked if you want to update the setup files located on the meter itself. This way, you will always
have the most current version on the meter for future installs.
Warning!
Do not unplug the meter while the new installation files are being written to it. The
meter will display
uwrite during the process and you will receive an onscreen
notification once the process is complete.

Data logging for one meter at a time is available with MeterView Pro software. More advanced data
acquisition may be accomplished by using any Modbus RTU compliant software. Additional information
regarding configuration and monitoring of the meter using MeterView Pro software is available online.
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